Conglomerate- Clastic, poorly sorted, contains round fragments Coal- Organic, Black color, contains plant material Limestone- Chemical, beginnings of geode, bubbles when acid is applied, Brecchia- Clastic, poorly sorted, contains angular fragments, Shale- Clastic, well sorted, fossils and stratification, contains fragment Chert- clastic, well sorted, stratification, scratches limestone Sandstone- Clastic, well sorted, stratification, contains fragments Coquina- Organic, contains angular fragments, bubbles when acid is applied Siltstone- Clastic, well sorted, stratification, contains fragments, bubbles when acid is applied
Metamorphic Rocks
Quartzite- non-foliated, from quartz, formed by heat Marble- Non-foliated, from calcite, formed by heat. Schist- foliated, from clourite, formed by pressure. Gneiss-foliated, from muscovite, formed by both. Slate- foliated, from shale, formed by pressure.
Rhyolite~Felsic,cools quickly,extrusive,fine grain
Scorria~Mafic,cools quickly,extrusive,fine grain
Granite~Felsic,cools slowly,intrusive,coarse grain
Andesite ~Mafic,cools quickly,extrusive,fine grain
Diorite~Felsic,cools slowly,intrusive,coarse grain
Basalt~Mafic,cools quickly,extrusive,fine grain
Pumice~Felsic,cools quickly,extrusive,fine grain
Gabbro~Mafic,cools quickly,extrusicve,prophoritic
Obsidian~Felsic,cools quickly,extrusive,glassy
Sedimentary Rocks
Conglomerate- Clastic, poorly sorted, contains round fragments
Coal- Organic, Black color, contains plant material
Limestone- Chemical, beginnings of geode, bubbles when acid is applied,
Brecchia- Clastic, poorly sorted, contains angular fragments,
Shale- Clastic, well sorted, fossils and stratification, contains fragment
Chert- clastic, well sorted, stratification, scratches limestone
Sandstone - Clastic, well sorted, stratification, contains fragments
Coquina- Organic, contains angular fragments, bubbles when acid is applied
Siltstone- Clastic, well sorted, stratification, contains fragments, bubbles when acid is applied
Metamorphic Rocks
Quartzite- non-foliated, from quartz, formed by heat
Marble - Non-foliated, from calcite, formed by heat.
Schist- foliated, from clourite, formed by pressure.
Gneiss-foliated, from muscovite, formed by both.
Slate- foliated, from shale, formed by pressure.